Modular hand-held kitchen appliance
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Solution Overview
Problem
Modular hand-held kitchen appliances lack versatility and functionality beyond simple mixing and blending, limiting their ability to perform a wide range of kitchen tasks.
Innovation Solution
A modular kitchen appliance system with a powerhead and interchangeable attachments, including a dual spice grinder, featuring a motor with a drive shaft, slip gears, and a spice selector that allows for selective operation of either grinder without reversing the motor, enabling efficient grinding of two different materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single motor is used in the powerhead to drive multiple attachments, then the device complexity is reduced and ease of operation is improved, but the versatility and functionality are limited
Solution Approach 1:
The powerhead is designed with a universal motor and drive shaft system that can accommodate multiple different attachments (grinder, whisk, blender, can opener, wine opener, etc.), allowing a single device to perform multiple kitchen functions. This multi-functionality approach enables the system to replace several separate appliances while maintaining manageable complexity through standardized connection interfaces.
2Ease of operation
If slip gears are used to enable selective operation of grinders without motor reversal, then the ease of operation is improved and versatility is enhanced, but the device complexity increases
Solution Approach 1:
Slip gears are introduced as intermediary mechanical components between the motor drive shaft and the grinder attachments. These slip gears enable selective power transmission to different grinders through a neutral position, allowing the motor to operate in a single direction while still achieving selective operation of multiple attachments. This mediator mechanism simplifies operation compared to motor reversal while managing the complexity through dedicated gear components.
3Productivity
If a dual grinder attachment with selective operation is implemented, then the productivity is improved by grinding two materials simultaneously, but the device complexity increases due to additional gears and selectors
Solution Approach 1:
Two grinder mechanisms are merged into a single attachment unit that can be connected to the powerhead. The combined grinder attachment includes integrated slip gears and a selector mechanism that allow both grinders to be operated from a single motor, enabling simultaneous or alternating grinding of two different materials while maintaining a unified attachment structure.
4Reliability
If the motor can operate in a single direction for both grinding modes, then the reliability is improved and ease of operation is enhanced, but the adaptability to different grinding configurations is reduced
Solution Approach 1:
The drive system incorporates dynamic slip gear components that can selectively engage or disengage based on the selected grinder configuration. The slip gears allow the motor to maintain a consistent rotational direction while dynamically routing power to different grinder attachments through mechanical engagement changes, thus preserving both reliability and adaptability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables a wide variety of kitchen tasks beyond basic mixing and blending, including spice grinding, with enhanced versatility and convenience by allowing simultaneous operation of two grinders without the need for motor reversal, thus expanding the appliance's functionality.
Implementation Method 1
the attachment shaft connected to a drive axle operatively connected to a first slip gear and a second slip gear; the first slip gear connected to a first grinder and the second slip gear connected to a second grinder
Implementation Method 2
the top gear wheel and bottom gear wheel of each of the first and second slip gears have ramps that separate the top gear wheel from the bottom gear wheel to allow them to rotate relative to each other
Implementation Method 3
the spice selector comprising a spice selector wheel having a protrusion that projects from the bottom of the spice selector wheel, configured such that, rotation of the spice selector wheel causes the protrusion to sit over one of the slip gears, thus preventing one of the top gear wheels from separating from its corresponding bottom gear wheel
Data Source
Figure 1
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Figure 4
AI summary
The present invention is directed to a hand-held modular kitchen multitool having a universal powerhead (10) capable of being used with a variety of kitchen appliance attachments, such as a blender, a whisker, a wine opener, a can opener, and a spice grinder. A dual spice grinder attachment (20) is also disclosed that can select one of two spices to grind. Also disclosed is a wine opener (18) that automatically removes a cork from a bottle.